_:b57431849	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57431848	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/4e2e942fe03ed73c8d2257b3f33df923e7b9a67a/0> .
_:b57431848	<http://www.w3.org/ns/oa#hasSelector>	_:b57431849 .
_:b57431849	<http://www.w3.org/ns/oa#exact>	"serum" .